Grotti 3.1.0: Bedarf-UI, Zeitfenster, HT/NT, Theme, Chrome-Fixes.

Bedarf in Sidebar/Material, Drucker-Zeitfenster und Tarif in Einstellungen, helles Theme; Legacy-Token und /api/drucker entfernt; SSE/SW-Fixes gegen hängende Navigation in Chrome.

web/static/sw.js

@@ -1,27 +1,46 @@
-/* Minimaler Service-Worker: App-Shell-Cache für Offline-Hinweis. */
-const CACHE = "grotti-shell-v1";
-const SHELL = ["/", "/static/grotti.css?v=54", "/static/api.js?v=28", "/static/ui.js?v=2"];
+/* Nur Static-Assets cachen — nie HTML-Navigation abfangen (sonst falsche Seite in Chrome). */
+const CACHE = "grotti-shell-v2";
 
 self.addEventListener("install", (event) => {
-  event.waitUntil(caches.open(CACHE).then((c) => c.addAll(SHELL).catch(() => undefined)));
   self.skipWaiting();
+  event.waitUntil(
+    caches.open(CACHE).then((cache) =>
+      cache.addAll([
+        "/static/grotti.css?v=56",
+        "/static/api.js?v=29",
+        "/static/ui.js?v=3",
+      ]).catch(() => undefined)
+    )
+  );
 });
 
 self.addEventListener("activate", (event) => {
   event.waitUntil(
     caches.keys().then((keys) =>
       Promise.all(keys.filter((k) => k !== CACHE).map((k) => caches.delete(k)))
-    )
+    ).then(() => self.clients.claim())
   );
-  self.clients.claim();
 });
 
 self.addEventListener("fetch", (event) => {
   const req = event.request;
   if (req.method !== "GET") return;
+  // Dokument-Navigation immer ans Netz — kein Fallback auf „/“.
+  if (req.mode === "navigate") return;
   const url = new URL(req.url);
+  if (url.origin !== self.location.origin) return;
   if (url.pathname.startsWith("/api/")) return;
+  if (!url.pathname.startsWith("/static/")) return;
+
   event.respondWith(
-    fetch(req).catch(() => caches.match(req).then((hit) => hit || caches.match("/")))
+    fetch(req)
+      .then((res) => {
+        if (res.ok) {
+          const copy = res.clone();
+          caches.open(CACHE).then((c) => c.put(req, copy)).catch(() => {});
+        }
+        return res;
+      })
+      .catch(() => caches.match(req))
   );
 });